Question: Which city became the capital of the Mughai Empire in 1648?
Paraphrase: In 1648 what was the capital of the Mughai Empire?
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q33296 p:P36 ?s . ?s ps:P36 ?obj . ?s pq:P580 ?x filter(contains(YEAR(?x),'1648')) }